Watering system



FIG. 1 is a perspective view of the watering system embodying my new design;

FIG. 2 is a right side view thereof (the left side being a mirror image);

FIG. 3 is a front view thereof (the rear being a mirror image);

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a watering system, as shown and described. 